That would be a good argument if we had good reason to believe the conditional, the if-then claim.

如果我们有很好的理由相信这种假设，那这就是个很好的论据。

耶鲁公开课 - 死亡课程节选

For those of you who still do believe in the existence of souls I suppose you could take a great deal in discussions that follows as some form of large conditional or subjunctive if there were no souls then here's what we have to say.

如果你们有人,还是相信灵魂的存在,或者你可以从以下的讨论里,也学到一些东西,把讨论看成有条件性和假定性的,假设没有灵魂,然后就是我们要讨论的东西。

耶鲁公开课 - 死亡课程节选